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Stone castable for kiln and preparation method thereof

A castable and stone technology, applied in the field of refractory materials, can solve the problem that the improvement of pressure resistance and flexural performance cannot be effectively solved, the service life of the kiln cannot be fundamentally improved, and the safety and long-life operation of the kiln cannot be fundamentally guaranteed. and other problems, to achieve the effect of improving parameters such as compression resistance/bending resistance, improving performance, and increasing service life

Inactive Publication Date: 2020-11-10
海城市金福锋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement of the pressure resistance and flexural performance of the existing castables cannot be effectively solved, the service life of the kiln cannot be fundamentally improved, and the safe and long-life operation of the kiln cannot be fundamentally guaranteed.

Method used

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  • Stone castable for kiln and preparation method thereof
  • Stone castable for kiln and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A stone castable for a kiln, in parts by weight, comprising the following raw materials:

[0049] 50 parts of white corundum,

[0050] 3 parts of fused mullite,

[0051] 10 parts of sintered magnesia,

[0052] 1 part andalusite,

[0053] Zinc silicate zirconium powder 2 parts,

[0054] 1 part of nano-silicon carbide,

[0055] 20 parts of calcium aluminate cement,

[0056] Yongji clay 3 parts,

[0057] 0.5 part of composite rare earth oxide,

[0058] 0.5 parts of water reducing agent.

[0059] The composite rare earth oxide is composed of yttrium oxide and cerium oxide with a mass ratio of 5:3.

[0060] The above-mentioned water reducer is a dispersed alumina-based high-efficiency water reducer.

[0061] The above-mentioned white corundum is composed of white corundum particles and white corundum fine powder with a mass ratio of 1:1, wherein the particle size of the white corundum particles is 2-5 mm, and the particle size of the white corundum fine powder is 15...

Embodiment 2

[0070] A stone castable for a kiln, in parts by weight, comprising the following raw materials:

[0071] 55 parts of white corundum,

[0072] Fused mullite 5 parts,

[0073] 12 parts of sintered magnesia,

[0074] 2 parts andalusite,

[0075] Zinc silicate zirconium powder 3 parts,

[0076] 2 parts of nano-silicon carbide,

[0077] 25 parts of calcium aluminate cement,

[0078] Yongji clay 5 parts,

[0079] 1 part of composite rare earth oxide,

[0080] 0.8 parts of water reducing agent.

[0081] The composite rare earth oxide is composed of yttrium oxide and cerium oxide with a mass ratio of 5:3.

[0082] The above-mentioned water reducer is a dispersed alumina-based high-efficiency water reducer.

[0083] The above-mentioned white corundum is composed of white corundum particles and white corundum fine powder with a mass ratio of 1:1, wherein the particle size of the white corundum particles is 2-5 mm, and the particle size of the white corundum fine powder is 150-2...

Embodiment 3

[0092] A stone castable for a kiln, in parts by weight, comprising the following raw materials:

[0093] 60 parts of white corundum,

[0094] 6 parts of fused mullite,

[0095] 15 parts of sintered magnesia,

[0096] 4 parts andalusite,

[0097] Zinc silicate zirconium powder 5 parts,

[0098] 3 parts of nano-silicon carbide,

[0099] 30 parts of calcium aluminate cement,

[0100] Yongji clay 8 parts,

[0101] 1.5 parts of composite rare earth oxide,

[0102] 1 part of water reducer.

[0103] The composite rare earth oxide is composed of yttrium oxide and cerium oxide with a mass ratio of 5:3.

[0104] The above-mentioned water reducer is a dispersed alumina-based high-efficiency water reducer.

[0105] The above-mentioned white corundum is composed of white corundum particles and white corundum fine powder with a mass ratio of 1:1, wherein the particle size of the white corundum particles is 2-5 mm, and the particle size of the white corundum fine powder is 150-250 m...

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Abstract

The invention relates to a stone castable for kiln. The stone castable is prepared from the following raw materials in parts by weight: 50-60 parts of white corundum, 3-6 parts of fused mullite, 10-15parts of sintered magnesia, 1-4 parts of andalusite, 2-5 parts of zirconium zinc silicate powder, 1-3 parts of nano silicon carbide, 20-30 parts of calcium aluminate cement, 3-8 parts of permanent clay, 0.5-1.5 parts of composite rare earth oxide and 0.5-1 part of a water reducing agent. According to the castable produced by the invention, substances such as white corundum, sintered magnesia, andalusite, zinc zirconium silicate powder, nano silicon carbide, composite rare earth oxide and the like are innovatively introduced and can generate a synergistic effect, so that the organization structure of the castable is changed, the volume density of the castable is improved, and the production cost is reduced. In addition, a good improvement effect is achieved on parameters such as compression resistance / fracture resistance; meanwhile, according to the preparation method disclosed by the invention, the performance of the castable is further improved by reasonable baking conditions.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a stone casting material for a kiln and a preparation method thereof. Background technique [0002] The kiln is the main equipment for continuous high-temperature operation, and it is an important guarantee for the high efficiency and low consumption of related enterprises. Improving the service life and performance of the kiln has always been a research hotspot for technicians in this field. At present, most of the kilns are made of castables, which can not only improve the integrity of the kiln, but also have a tighter structure. However, the improvement of the pressure resistance and flexural performance of the existing castables cannot be effectively solved, the service life of the kiln cannot be fundamentally improved, and the safe and long-life operation of the kiln cannot be fundamentally guaranteed. Contents of the invention [0003] The object...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/101
CPCC04B35/101C04B2235/3463C04B2235/3206C04B2235/3481C04B2235/3427C04B2235/349C04B2235/3222C04B2235/3224C04B2235/3826C04B2235/6562C04B2235/6567C04B2235/602C04B2235/77C04B2235/96C04B2235/9615C04B2235/9607
Inventor 王相丰裘伟王维
Owner 海城市金福锋科技有限公司